Index of Replication Files for Kellermann (2012)

Estimating ideal points in the British House of Commons using Early Day Motions

American Journal of Political Science



File Name                        Description

edmideal_0.1-3.zip               Binary file of R package containing functions to estimate both one-cutpoint and 
                                 two-cutpoint ideal point models using EDM signatures.  For use with Windows versions
                                 of R.  Package built using R 2.10.0 on Windows platform.
edmideal_0.1-3.tar.gz            Tar ball of R package containing functions to estimate both one-cutpoint and 
                                 two-cutpoint ideal point models using EDM signatures.  For use with Unix/Mac versions
                                 of R.  Package built using R 2.10.0.  Note: this was built on Windows box and has not 
                                 been tested on Unix/Mac machines.  Some compilers may have problems with C code
                                 used in the package.
idealgraphsfinal.r               R code file used to generate graphs and tables in Kellermann (2012) and supplemental 
                                 information.
idealonecutfinal.r               Example of R code used to generate posterior draws from the one-cutpoint ideal point
                                 model defined in Kellermann (2012).  See help file for R function for more details.
idealtwocutfinal.r               Example of R code used to generate posterior draws from the two-cutpoint ideal point
                                 model defined in supplemental information for Kellermann (2012).  See help file for 
                                 R function for more details.
init.mean.R                      Rdata file containing starting values for one-cutpoint model (used in 
                                 idealonecutfinal.r script file)
init.sd.R                        Rdata file containing standard deviations of starting values for one-cutpoint model 
                                 (used in idealonecutfinal.r script file)
init.twocut.R                    Rdata file containing starting values for two-cutpoint model (used in 
                                 idealtwocutfinal.r script file)
mpcharacteristics.csv            CSV file containing MP characteristics (party membership, percent support for Labour 
                                 Party position, and Optimal Classification location estimates.
mpinc98.v4.csv                   CSV file containing signature matrix for EDM signatures from 1998 session of Parliament.
                                 Data originally from Nason (2001) "Early Day Motions: Exploring backbench opinion during 
                                 1997-2000" Working paper, University of Bristol.  Modified as described in Kellermann (2012)
sponsors.csv                     CSV files containing row ID of the sponsor of each EDM included in mpinc98.v4.  Obtained by 
                                 author from House of COmmons website.
onecutpointdraws.RData           Posterior draws from one-cutpoint model used to generate results in Kellermann (2012) and
                                 supplemental information.
twocutpointdraws.RData           Posterior draws from two-cutpoint model used to generate results in supplemental information
                                 for Kellermann (2012).
    